Adaptive three-phase auto-reclosing strategy based on capacitor voltage for power transmission lines with shunt reactors

被引：0
|
作者：
Huang F. [1 ]
Li F. [1 ]
Xie C. [1 ]
Wang T. [1 ,2 ]
Ma H. [2 ]
Bai H. [2 ]
机构：
[1] Engineering Research Center for Renewable Energy Power Generation and Grid Technology, Ministry of Education, Xinjiang University, Urumqi
[2] Changji Power Supply Company of State Grid Xinjiang Electric Power Co., Ltd., Changji
来源：
Dianli Zidonghua Shebei/Electric Power Automation Equipment | 2020年 / 40卷 / 06期
基金：
中国国家自然科学基金;
关键词：
Distributed capacitance; Fault with high transition resistance; Pre-charged capacitor; Shunt reactor; Three-phase auto-reclosing strategy;
D O I：
10.16081/j.epae.202005017
中图分类号：
学科分类号：
摘要：
Energy storage feature of shunt reactors can increase the uncertainty of secondary arc duration after three-phase tripping, especially for the faults with high transition resistance, the residual electrical quantities usually damp too rapidly to ensure reliability of the existing fault characteristic criteria, and even result in a reclosing failure. In view of the above problems, the pre-charged capacitors are used to discharge to the power transmission lines instead of the idea based on the residual electrical quantities of the line, the type of line fault is judged by the varying characteristics of capacitor discharging voltage. Simulations based on PSCAD/EMTDC verify that the proposed adaptive three-phase auto-reclosing strategy can guarantee its accuracy under various working conditions with different fault types, fault locations and tran-sition resistances. © 2020, Electric Power Automation Equipment Press. All right reserved.
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页码：170 / 176and197
相关论文
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